diff --git a/default.nix b/default.nix
index 0e4da8457d..d1b8a7c621 100644
--- a/default.nix
+++ b/default.nix
@@ -22,7 +22,7 @@ rustPlatform.buildRustPackage {
   cargoLock = {
     lockFile = ./Cargo.lock;
     outputHashes = {
-      "confy-0.5.0" = "sha256-BVTczVbURL1Id/k/5ArlDQTZxLuI3XxQl7BdIx230U4=";
+      "confy-0.5.1" = "sha256-3PQdz9W/uJd4CaUZdwAd2u3JJ100SFAoKLCFE6THRZI=";
       "criterion-0.3.5" = "sha256-7REd3phV6PBzqWwKF8hwttw4FTq2tKGxxAAJDpLC50A=";
       "inkwell-0.1.0" = "sha256-1kpvY3naS33B99nuu5ZYhb7mdddAyG+DkbUl/RG1Ptg=";
       "plotters-0.3.1" = "sha256-noy/RSjoEPZZbOJTZw1yxGcX5S+2q/7mxnUrzDyxOFw=";